I have a somewhat unusual question (I'm relatively new to this all). I have a keltec sub2000 that can take G17 mags. The one I have came with a 10-round (because massachusetts) square notch mag.
Its there a functional difference between square and "U" notch mags? Like, if the gun takes square-notch mags, can it also take U-shape ones?
Its there a functional difference between square and "U" notch mags? Like, if the gun takes square-notch mags, can it also take U-shape ones?